package com.yicheng.dao;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.yicheng.domain.Book;
import org.apache.ibatis.annotations.Mapper;


//这是mybatis-plus帮我们做了数据库查询、更新等这些操作，只需要继承BaseMapper类，记得传一个泛型
@Mapper
public interface BookDao extends BaseMapper<Book> {
}
